Active pavement freezing temperature detection device and method

The invention discloses an active pavement freezing temperature detection device and method. The device comprises a semiconductor chilling plate control module, a micro motor control module, a power supply module, a temperature module, a communication module and a main control module, wherein the main control module is respectively connected with a semiconductor chilling plate control module, a micro motor control module, a power supply module, a temperature module and a communication module; the semiconductor chilling plate control module is used for starting the semiconductor chilling plate to actively cool or stop working under the guidance of the main control module, the micro motor control module is used for controlling the micro motor to rotate forwards or reversely or stop rotating under the guidance of the main control module, and the temperature module is used for reading a numerical value of the temperature sensor according to an instruction of the main control module; and the communication module i